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Rust Problem found. (Read 3243 times)

porchdog48 Full Member Offline Posts: 100 Location: Waynesburg, Ohio Joined: Mar 25^th, 2010	Rust Problem found. Nov 12^th, 2022 at 2:26pm	Print Post
	Something is rusting steel and corroding aluminum in my shop. At first I thought it was moisture so added A/C and a dehumidifier no change. There are no new chemicals in the shop. It seems to be concentrated more in one corner. I have looked everywhere for something leaking or giving off some kind of gas no luck. If it was just rust I would guess moisture but the aluminum has me stumped. I have bead blasted rust off and oiled some tools , and they have started rusting again. I was wondering if anyone has run into this before. PROBLEM FIXED First I want to thank everyone for the suggested possibilities. Yesterday I went out to my shop and started going through the whole place piece by piece. After about 5 hours I found a small jar of acid I had used to strip plating from screws stuck behind a bunch of stock blanks. The jar was plastic but had a paper type lid gasket which had deteriorated and allowed fumes to escape. I am glad I found it the rust was a big problem, but I was concerned on if I was breathing something harmful. Once again thank you for all the replies the combination of which put me on the track to success. Dave
	« Last Edit: Nov 22^nd, 2022 at 3:50pm by porchdog48 »

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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Rust Reply #1 - Nov 12^th, 2022 at 4:28pm	Print Post
	Wow !! I have been pretty lucky and I have never experienced such a thing. But I have heard of some chemicals being in per-say the same space actually causing it. I do hope that you can eventually figure it no matter what type of material it is made from.

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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porchdog48 Full Member Offline Posts: 100 Location: Waynesburg, Ohio Joined: Mar 25^th, 2010	Re: Rust Reply #2 - Nov 12^th, 2022 at 4:54pm	Print Post
	The picture of the spider off my lathe had no rust 2 months ago. It seems like the dust that settles on the metal is absorbing something and causing the problem. There is no rust on the side that is down. I haven’t had this problem since I build my shop 9 years ago. The problem started about 4 months ago. I can’t think or find anything I brought in that would cause this. Dave


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uscra112 Frequent Elocutionist Offline Posts: 4079 Location: Switzerland of Ohio Joined: May 7^th, 2007	Re: Rust Reply #3 - Nov 12^th, 2022 at 5:05pm	Print Post
	I'm inclined toward pool shock vapor, too. Mixed with even a little water vapor it makes strong acids that will affect everything they touch. I once saw a million $$ worth of damage done in a machine shop, caused by chlorine/flourine liberated from wiring insulation during a relatively minor fire, combined with the firefighters' water mist. Formaldehyde can also do that. Outgassing from cheap Chinese wallboard. When cold metal "sweats" in a moist environment, the rust starts on the top. The cold metal sets up a downward convection flow that draws more air past the object.
	« Last Edit: Nov 12^th, 2022 at 5:18pm by uscra112 »
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Grumpy gumpy Full Member Offline Posts: 214 Location: australia Joined: Jul 6^th, 2016	Re: Rust Reply #4 - Nov 12^th, 2022 at 5:56pm	Print Post
	Do you have any neighbours buildings close by, friend had sudden rusting of steel when the workshop next to his stored pool chemicals in damaged drums. Gumpy


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porchdog48 Full Member Offline Posts: 100 Location: Waynesburg, Ohio Joined: Mar 25^th, 2010	Re: Rust Reply #5 - Nov 12^th, 2022 at 6:32pm	Print Post
	No pool chemicals. The rust seem to migrating from one corner through out the shop. Tomorrow I am going through the entire shop again. I even have some stainless cleaning rod that is rusting (probably not a high grade of stainless). What ever it is it’s aggressive. If I find out I will definitely let you all know. Dave


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Arctic Participating Member Offline Posts: 49 Location: Yellowknife, Canada Joined: Jan 7^th, 2013	Re: Rust Reply #6 - Nov 13^th, 2022 at 3:01am	Print Post
	I went thru something like this 20 years ago, ..... never pinpointed it, but believed it was dueto being in close proximity to Birchwood Casey products and some fluxes, also damaged some horn buttplates, etc. Some containers had sweated and released a vapour.


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hepburnman Senior Forum Member Offline Posts: 402 Location: NJ Joined: Mar 22^nd, 2015	Re: Rust Reply #7 - Nov 13^th, 2022 at 12:03pm	Print Post
	If you recently built your shop what wall insulation we used?


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porchdog48 Full Member Offline Posts: 100 Location: Waynesburg, Ohio Joined: Mar 25^th, 2010	Re: Rust Reply #8 - Nov 13^th, 2022 at 1:49pm	Print Post
	Shop was built 9 years ago with fiberglass insulation in walls and ceiling. I think it is some kind of fumes or gas from something. I got it narrowed down to one area of the shop. I am going to go through everything in that area tomorrow.


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KFW Oldtimer Offline Posts: 555 Location: Powell Wy. Joined: Dec 18^th, 2016	Re: Rust Reply #9 - Nov 13^th, 2022 at 4:14pm	Print Post
	Could just be wall condensation? Do you have faced vapor barrier insulation. When I lived in Mich. my shop tools all continually rusted in winter, was running a wood stove then, a forced air furnace really helped out in the end.


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joeb33050 Frequent Elocutionist Offline Posts: 2613 Location: Marathon, FL Joined: Apr 20^th, 2004	Re: Rust Reply #10 - Nov 14^th, 2022 at 6:57am	Print Post
	An unvented gas heater will make the air in the building more acid and promotes rust.


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condorsc Full Member Offline NRA Life/Benefactor, ASSRA, SCV Life Posts: 152 Location: Beaufort, S.C. Joined: Nov 13^th, 2021	Re: Rust Reply #11 - Nov 15^th, 2022 at 2:08am	Print Post
	Used or stored any muriatic acid lately? Remember, muriatic is just diluted sulfuric acid, which will corrode just about anything.


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beltfed Frequent Elocutionist Offline Posts: 1755 Location: Central Wi Joined: Dec 20^th, 2007	Re: Rust Problem found. Reply #12 - Nov 15^th, 2022 at 8:20am	Print Post
	Muriatic acid is Hydrochloric acid, NOT Sulfuric. The M acid liberates fumes that will corrode stuff. And the fumes are bad for the lungs. Sulfuric acid does not liberate fumes by itself. It is found in lead-acid batteries like car batteries. beltfed/arnie


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condorsc Full Member Offline NRA Life/Benefactor, ASSRA, SCV Life Posts: 152 Location: Beaufort, S.C. Joined: Nov 13^th, 2021	Re: Rust Problem found. Reply #13 - Nov 16^th, 2022 at 3:03am	Print Post
	beltfed wrote on Nov 15^th, 2022 at 8:20am: Muriatic acid is Hydrochloric acid, NOT Sulfuric. The M acid liberates fumes that will corrode stuff. And the fumes are bad for the lungs. Sulfuric acid does not liberate fumes by itself. It is found in lead-acid batteries like car batteries. beltfed/arnie In fact, in one of the production processes of muriatic acid, sodium chloride and sulphuric acid are mixed, producing muriatic, or hydrogen chloride. I was trying to reference the fact that if you liberate ANY muriatic fumes, say in a shop or garage, from a leaking jug, etc., over the following days every single steel or iron object in the place will RUST. Finally, I was trying to emphasize the fact that muriatic is classified as a strong acid and a leaking jug of it could well be the source of his problem. I guarantee you even a small pool of muriatic will rust every steel object in a shop or garage. Don't know about aluminum.


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condorsc Full Member Offline NRA Life/Benefactor, ASSRA, SCV Life Posts: 152 Location: Beaufort, S.C. Joined: Nov 13^th, 2021	Re: Rust Problem found. Reply #14 - Nov 16^th, 2022 at 4:18am	Print Post
	porchdog48 wrote on Nov 12^th, 2022 at 2:26pm: Something is rusting steel and corroding aluminum in my shop. At first I thought it was moisture so added A/C and a dehumidifier no change. There are no new chemicals in the shop. It seems to be concentrated more in one corner. I have looked everywhere for something leaking or giving off some kind of gas no luck. If it was just rust I would guess moisture but the aluminum has me stumped. I have bead blasted rust off and oiled some tools , and they have started rusting again. I was wondering if anyone has run into this before. PROBLEM First I want to thank everyone for the suggested possibilities. Yesterday I went out to my shop and started going through the whole place piece by piece. After about 5 hours I found a small jar of acid I had used to strip plating from screws stuck behind a bunch of stock blanks. The jar was plastic but had a paper type lid gasket which had deteriorated and allowed fumes to escape. I am glad I found it the rust was a big problem, but I was concerned on if I was breathing something harmful. Once again thank you for all the replies the combination of which put me on the track to success. Dave What kind of acid was it, Dave?


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